package com.stedu.security;

import cn.hutool.json.JSONUtil;
import com.stedu.bean.RespBean;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.authentication.AuthenticationFailureHandler;
import org.springframework.stereotype.Component;

import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@Component
public class LoginFailureHandler implements AuthenticationFailureHandler {
    @Override
    public void onAuthenticationFailure(HttpServletRequest request, HttpServletResponse response, AuthenticationException exception) throws IOException, ServletException {
        response.setContentType("application/json;charset=utf-8");
        ServletOutputStream out = response.getOutputStream();
        RespBean result = RespBean.error(exception.getMessage());

        out.write(JSONUtil.toJsonStr(result).getBytes("UTF-8"));
        //确保所有缓冲的输出数据都被发送到客户端
        out.flush();
        out.close();
    }
}